American Superconductor Corp
AMSC- Exchange
- Nasdaq
- Industry
- Motors & Generators
- SEC CIK
- 0000880807
No open-market purchases or sales by American Superconductor Corp insiders were filed in the last 90 days; 277 institutions reported holding it in 13F filings for Q2 2026, worth $1.47B in total; no superinvestor holds it.
13F holders, Q4 2022
Institutional positions in American Superconductor Corp as of Dec 31, 2022. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 77
- −5 vs. Q3 2022
- Shares held
- 13.1M
- −787.8K (−5.7%) vs. Q3 2022
- Total value
- $48.4M
- −$12.7M (−20.7%) vs. Q3 2022
- New holders
- 12
- 20 more added
- Sold out
- 17
- 27 more reduced
Compare with Q3 2022: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMSC on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 277 | $1.47B |
| Q1 2026 | 245 | $1.12B |
| Q4 2025 | 240 | $953.2M |
| Q3 2025 | 273 | $1.94B |
| Q2 2025 | 232 | $1.20B |
| Q1 2025 | 189 | $499.8M |
| Q4 2024 | 191 | $678.1M |
| Q3 2024 | 171 | $642.6M |
| Q2 2024 | 155 | $636.1M |
| Q1 2024 | 128 | $312.0M |
| Q4 2023 | 99 | $178.8M |
| Q3 2023 | 72 | $100.0M |
| Q2 2023 | 77 | $81.9M |
| Q1 2023 | 74 | $64.6M |
| Q4 2022 | 77 | $48.4M |
| Q3 2022 | 82 | $61.0M |
| Q2 2022 | 93 | $68.6M |
| Q1 2022 | 107 | $119.5M |
| Q4 2021 | 107 | $178.2M |
| Q3 2021 | 101 | $243.3M |
| Q2 2021 | 105 | $284.8M |
| Q1 2021 | 104 | $311.2M |
Institutions, Q4 2022
Shares, value and share of portfolio for each institution holding American Superconductor Corp; share changes are against Q3 2022.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Massmutual Trust Co FSB | 50 | $0 | 0.00% | 00.0% | Unchanged |
| Bartlett & Co. LLC | 36 | $0 | 0.00% | 00.0% | Unchanged |
| Barclays PLC | 4 | $15 | 0.00% | 00.0% | Unchanged |
| JFS Wealth Advisors, LLC | 10 | $37 | 0.00% | 00.0% | Unchanged |
| Advisory Services Network, LLC | 10 | $37 | 0.00% | +10 | New |
| Bartlett & Co. Wealth Management LLC | 36 | $132 | 0.00% | 00.0% | Unchanged |
| Whittier Trust Co of Nevada Inc | 40 | $147 | 0.00% | 00.0% | Unchanged |
| BNP Paribas Arbitrage, SA | 57 | $210 | 0.00% | −523−90.2% | Reduced |
| US Bancorp | 128 | $471 | 0.00% | 00.0% | Unchanged |
| CoreCap Advisors, LLC | 220 | $810 | 0.00% | +220 | New |
| FMR LLC | 223 | $821 | 0.00% | +223 | New |
| Federation des caisses Desjardins du Quebec | 300 | $1.10K | 0.00% | 00.0% | Unchanged |
| Federated Hermes, Inc. | 391 | $1.44K | 0.00% | 00.0% | Unchanged |
| First Manhattan Co | 500 | $1.84K | 0.00% | −350−41.2% | Reduced |
| Nisa Investment Advisors, LLC | 540 | $2.00K | 0.00% | 00.0% | Unchanged |
| Johnson Financial Group, Inc. | 992 | $3.65K | 0.00% | +74+8.1% | Added |
| Rockefeller Capital Management L.P. | 1,200 | $4.00K | 0.00% | 00.0% | Unchanged |
| Tilia Fiduciary Partners, Inc. | 1,100 | $4.05K | 0.00% | 00.0% | Unchanged |
| Wells Fargo & Company | 1,429 | $5.26K | 0.00% | −991−41.0% | Reduced |
| M&R Capital Management Inc | 2,000 | $7.36K | 0.00% | +2,000 | New |
| Advisor Group Holdings, Inc. | 3,565 | $13.0K | 0.00% | +40+1.1% | Added |
| Global Retirement Partners, LLC | 4,360 | $16.0K | 0.00% | −170−3.8% | Reduced |
| Citigroup Inc | 5,890 | $21.7K | 0.00% | −574−8.9% | Reduced |
| Dark Forest Capital Management LP | 7,241 | $26.6K | 0.01% | +7,241 | New |
| Tower Research Capital LLC (TRC) | 7,971 | $29.0K | 0.00% | +7,971 | New |
| UBS Group AG | 10,986 | $40.4K | 0.00% | +2,445+28.6% | Added |
| Cubist Systematic Strategies, LLC | 10,998 | $40.5K | 0.00% | +10,998 | New |
| Simplex Trading, LLC | 11,635 | $42.0K | 0.00% | +11,635 | New |
| Vontobel Holding Ltd. | 14,000 | $51.5K | 0.00% | 00.0% | Unchanged |
| Greenwich Wealth Management LLC | 14,366 | $53.0K | 0.01% | −1,723−10.7% | Reduced |
| Raymond James Financial Services Advisors, Inc. | 15,396 | $56.7K | 0.00% | −645−4.0% | Reduced |
| Atria Wealth Solutions, Inc. | 15,735 | $57.9K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 16,241 | $59.8K | 0.00% | −16,469−50.3% | Reduced |
| TFC Financial Management | 16,471 | $60.6K | 0.02% | −6,079−27.0% | Reduced |
| Jump Financial, LLC | 18,900 | $69.6K | 0.00% | −16,300−46.3% | Reduced |
| PDT Partners, LLC | 21,177 | $77.9K | 0.01% | +7,833+58.7% | Added |
| Joule Financial, LLC | 21,232 | $78.1K | 0.05% | −799−3.6% | Reduced |
| Healthcare of Ontario Pension Plan Trust Fund | 23,695 | $87.2K | 0.00% | +6,369+36.8% | Added |
| Qube Research & Technologies Ltd | 24,004 | $88.3K | 0.00% | +271+1.1% | Added |
| Bank of New York Mellon Corp | 28,890 | $106.3K | 0.00% | −134−0.5% | Reduced |
| Two Sigma Advisers, LP | 29,800 | $109.7K | 0.00% | −23,800−44.4% | Reduced |
| Acadian Asset Management LLC | 32,265 | $117.0K | 0.00% | +32,265 | New |
| Journey Strategic Wealth LLC | 35,000 | $128.8K | 0.02% | 00.0% | Unchanged |
| Jane Street Group, LLC | 35,042 | $129.0K | 0.00% | +35,042 | New |
| Price T Rowe Associates Inc | 40,100 | $148.0K | 0.00% | −5,500−12.1% | Reduced |
| Royal Bank of Canada | 43,194 | $158.0K | 0.00% | −11,514−21.0% | Reduced |
| Citadel Advisors LLC | 43,093 | $158.6K | 0.00% | +9,274+27.4% | Added |
| Group One Trading, L.P. | 48,256 | $177.6K | 0.01% | +48,256 | New |
| State of Wisconsin Investment Board | 50,000 | $184.0K | 0.00% | −26,600−34.7% | Reduced |
| Northern Trust Corp | 50,313 | $185.2K | 0.00% | +2,825+5.9% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 50,630 | $186.3K | 0.00% | −789−1.5% | Reduced |
| Man Group plc | 50,800 | $186.9K | 0.00% | −54,646−51.8% | Reduced |
| Morgan Stanley | 58,317 | $214.6K | 0.00% | −17,884−23.5% | Reduced |
| Bank of America Corp | 61,145 | $225.0K | 0.00% | −41,140−40.2% | Reduced |
| Susquehanna International Group, LLP | 64,987 | $239.2K | 0.00% | +31,934+96.6% | Added |
| Deutsche Bank AG | 67,870 | $249.8K | 0.00% | 00.0% | Unchanged |
| Marshall Wace, LLP | 69,669 | $256.4K | 0.00% | −14,072−16.8% | Reduced |
| Merit Financial Group, LLC | 74,954 | $275.8K | 0.01% | +74,954 | New |
| Bridgeway Capital Management, LLC | 91,200 | $335.6K | 0.01% | +20,000+28.1% | Added |
| State Street Corp | 92,696 | $341.1K | 0.00% | −543,894−85.4% | Reduced |
| Renaissance Technologies LLC | 102,189 | $376.0K | 0.00% | −34,700−25.3% | Reduced |
| Millennium Management LLC | 113,892 | $419.0K | 0.00% | −17,971−13.6% | Reduced |
| Gsa Capital Partners LLP | 130,378 | $480.0K | 0.06% | +55,298+73.7% | Added |
| JPMorgan Chase & Co | 251,987 | $927.0K | 0.00% | +49,242+24.3% | Added |
| First Trust Advisors LP | 255,337 | $939.2K | 0.00% | +1,695+0.7% | Added |
| Geode Capital Management, LLC | 278,227 | $1.02M | 0.00% | +10,529+3.9% | Added |
| CM Management, LLC | 330,000 | $1.21M | 1.45% | +30,000+10.0% | Added |
| Dimensional Fund Advisors LP | 461,252 | $1.70M | 0.00% | +108,929+30.9% | Added |
| D. E. Shaw & Co., Inc. | 464,479 | $1.71M | 0.00% | −129,140−21.8% | Reduced |
| KBC Group NV | 481,369 | $1.77M | 0.01% | 00.0% | Unchanged |
| BlackRock Inc. | 520,239 | $1.91M | 0.00% | +463+0.1% | Added |
| ArrowMark Colorado Holdings LLC | 564,000 | $2.08M | 0.02% | −86,000−13.2% | Reduced |
| Invesco Ltd. | 1,014,843 | $3.73M | 0.00% | −169,616−14.3% | Reduced |
| Vanguard Group Inc | 1,094,164 | $4.03M | 0.00% | +3,269+0.3% | Added |
| Baillie Gifford & Co | 1,491,370 | $5.49M | 0.01% | 00.0% | Unchanged |
| Royce & Associates LP | 1,663,971 | $6.12M | 0.06% | +141,666+9.3% | Added |
| AWM Investment Company, Inc. | 2,536,283 | $9.33M | 1.35% | +752,091+42.2% | Added |
| Assenagon Asset Management S.A. | 0 | $0 | 0.00% | −330,251−100.0% | Sold out |
| BIT Capital GmbH | 0 | $0 | 0.00% | −111,109−100.0% | Sold out |
| GMT Capital Corp | 0 | $0 | 0.00% | −108,066−100.0% | Sold out |
| Two Sigma Investments, LP | 0 | $0 | 0.00% | −88,817−100.0% | Sold out |
| Mitsubishi UFJ Kokusai Asset Management Co., Ltd. | 0 | $0 | 0.00% | −67,326−100.0% | Sold out |
| Formula Growth Ltd | 0 | $0 | 0.00% | −65,000−100.0% | Sold out |
| Harel Insurance Investments & Financial Services Ltd. | 0 | $0 | 0.00% | −59,863−100.0% | Sold out |
| Prescott Group Capital Management, L.L.C. | 0 | $0 | 0.00% | −55,000−100.0% | Sold out |
| XTX Topco Ltd | 0 | $0 | 0.00% | −52,753−100.0% | Sold out |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −37,526−100.0% | Sold out |
| Quadrature Capital Ltd | 0 | $0 | 0.00% | −24,586−100.0% | Sold out |
| Caxton Associates LP | 0 | $0 | 0.00% | −17,832−100.0% | Sold out |
| Investors Asset Management of Georgia Inc | 0 | $0 | 0.00% | −9,200−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −2,700−100.0% | Sold out |
| Legal & General Group Plc | 0 | $0 | 0.00% | −656−100.0% | Sold out |
| Cutler Group LP | 0 | $0 | 0.00% | −132−100.0% | Sold out |
| Hudock, Inc. | 0 | $0 | 0.00% | −4−100.0% | Sold out |